Combined holophote laser resonant cavity composed of right-angle round platform inboard surface and right-angle taper outboard surface
A technology of laser resonator and inner surface, which is applied in the field of laser resonator, can solve problems such as inability to eliminate the uneven distribution of the center and edge of the gain medium, inability to realize circular hollow spot laser output, and low thermal stability of the rectangular conical prism cavity. Achieve reliable performance, easy modification, and reduce thermal distortion
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Embodiment 1
[0046] Depend on Figure 6 ~ Figure 7 As shown, the present invention includes a total reflection mirror 1, an output mirror 2 and a laser working medium 3. The total reflection mirror 1 is composed of an inner surface 4 of a right-angled circular frustum and an outer surface 5 of a reverse right-angled cone. The output mirror 2 is an integral plane mirror composed of a circular plane 11 and a concentric ring-shaped plane 12 on the edge. The circular plane 11 is coated with a semi-transparent and semi-reflective film as a laser output port, and the ring-shaped plane 12 is coated with a high-reflection film. , the dimensional relationship between them is Фd=Фb=2Фc, where Фc is the diameter of the circular plane 11 , and Фd is the diameter of the output mirror 2 .
[0047] Embodiment 1 The effective laser output spot area of the laser resonator is 1 / 4 of the bottom surface area of the total reflection mirror 1, which can greatly increase the laser output power density. The ...
Embodiment 2
[0049] Depend on Figure 8 ~ Figure 11 As shown, the present invention includes a total reflection mirror 1, an output mirror 2 and a laser working medium 3. The total reflection mirror 1 is composed of an inner surface 4 of a right-angled circular frustum and an outer surface 5 of a reverse right-angled cone. The output mirror 2 is a split output mirror, which is made up of a circular plane half-mirror 13 and a concentric annular plane full-mirror 14 on the edge, and the circular plane half-mirror 13 and the annular plane full-mirror 14 The axes of rotational symmetry are coaxial, and the dimensional relationship between them is Фd=Фb=2Фc, Фe>Фc, Фf>Фd, where Фc is the diameter of the circular flat half mirror 13, and Фd is the diameter of the output mirror 2, Фe is the installation size of the circular plane half-mirror 13 , and Фf is the installation size of the output mirror 2 . 15 is an annular cooling water tank of the output mirror 2, and 16 is an annular cover plate. ...
Embodiment 3
[0052] Depend on Figure 12 to Figure 14 As shown, the present invention includes a total reflection mirror 1, an output mirror 2 and a laser working medium 3. The total reflection mirror 1 is composed of an inner surface 4 of a right-angled circular frustum and an outer surface 5 of a reverse right-angled cone. The output mirror 2 is a split output mirror, which is made up of the concentric ring-shaped total reflection mirror 17 of the circular plane half-mirror 13 and the edge, and the concentric ring-shaped total reflection mirror 17 is composed of the inner surface 18 and the The outer surface 19 of the opposite second right-angled circular truncated form, the rotational symmetry axes of the two right-angled circular pedestals are coaxial, the inner surface 18 of the first right-angled circular pedestal and the outer surface 19 of the second right-angled circular pedestal are high reflective surfaces, circular planes The half-transparent mirror 13 and the concentric ring-s...
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